Maybe i mentioned..?
I got the lindytools cutters, done a test and got the following witness mark,
7878ED54-684A-46B6-9733-340D66E07E1F.jpeg
It lookes like the chamfer on the cutter just knicked the edge of the valve relief as you can see.. i didnt think it enough to put then on the mill, so i carved it open a bit more with my deburring knife, smoothed with 1000w&d and a scotchbrite by hand
422B673E-4A44-431D-93D1-AFBE86F62887.png
19E40B66-FEB9-4EEF-AF72-450DEBC5EA4B.png
Probably an overthink but ill sleep better at night...
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